Yesterday, I posted on how iPhone OS 4.0 Beta 3 and the iPhone OS 4.0 Beta 3 SDK was released. Now, information has been released saying that iPhone OS 4.0 has gained these things:

Orientation lock

iPod Controls in the multitasking interface

These are probably just some of the unannounced features in iPhone OS 3.0 Beta 3 and with even more to come in the future betas. Apparently, the orientation lock feature can only lock your screen in the portrait position. Hopefully Apple will fix this if this is a bug, however, Apple may have intended it to be that way. But why, though? PocketFullOfApp will post more information has it is released.